San Antonio Museum of Art
Early in the drive, right off the route
San Antonio, Texas
Hours: 10 am–5 pm
+12109788100
Visit websiteCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
1h 56m
Distance
101.3 mi
163 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$15
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Somerset, TX
Wikimedia Commons
This 111.6-mile drive from Somerset, TX to Montopolis, TX will take approximately 1 hour and 45 minutes. It's a straightforward, turn-heavy local drive that's easily manageable as a single-day trip. You'll be navigating primarily via Somerset Road and TX 1604, with a portion on Anderson Loop. The estimated fuel cost for this journey is around $17. Both your starting and ending points are within the Great Plains region, so expect a consistent landscape. Given the relatively short duration and distance, this route is ideal for a single-day excursion without needing an overnight stay.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
50.7 miles from Somerset, TX
A natural place for your longest stop of the day , about 59m into the drive .
| Road | Distance | Duration |
|---|---|---|
| Purple Heart Trail | 62.6 mi | 1h 7m |
| South Pan Am Expressway | 21.5 mi | 26m |
| North Pan Am Expressway | 7.4 mi | 8m |
| East 7th Street | 2.8 mi | 4m |
| Anderson Loop | 2.8 mi | 3m |
| Interstate Highway 35 | 1.9 mi | 2m |
| South TX 1604 Loop West | 0.6 mi | <1m |
| Somerset Road | 0.4 mi | <1m |
Step-by-step road directions between Somerset, TX and Montopolis, TX.
Start on K Street
Turn left onto FM 2790
Turn left onto Loop 1604
Continue on Loop 1604
Turn right onto Interstate 35 South
Take the ramp
Merge onto I 35
Continue on I 35
Keep slight left at fork onto I 35
Keep slight right at fork onto I 35
Keep slight left at fork onto North Pan Am Expressway
Continue on I 35
Continue on I 35
Continue on I 35
Take the exit
Turn straight onto North Interstate 35
Turn right onto East 7th Street
Turn straight onto Loop 111
Continue on US 183
Take the ramp
Arrive at destination
With a duration of just under two hours and no need to split the trip, you have a lot of flexibility on when to depart. Leaving Somerset, TX in the morning, perhaps after a quick fuel stop, will allow you to arrive in Montopolis, TX well before the afternoon rush. Keep an eye on your fuel gauge, as the estimated cost is $17, and there are no designated stops on this route, so plan any necessary breaks before you set off. The 'Turn-heavy local drive' profile means you'll want to be extra attentive to road signs and potential turns, especially when transitioning from Somerset Road to TX 1604.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 22 miles or 27m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 50.7 miles or 59m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 34m
Traffic, exits, and arrival timing usually matter more near Montopolis, TX than in the middle of the route.
Open the route before leaving Somerset, TX so your first major turns are already loaded.
Day 1
Settle into the route from Somerset, TX
This is one driving day of about 101.3 miles and 1h 56m.
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
51 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 22 miles helps settle the day before fatigue starts building.
The midpoint is around 50.7 miles from Somerset, TX, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Purple Heart Trail if your tank is already low. That segment runs about 62.6 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Picked by where they fit in your drive — first break, midpoint reset, final stretch.
Early in the drive, right off the route
San Antonio, Texas
Hours: 10 am–5 pm
+12109788100
Visit websiteEarly in the drive, right off the route
San Antonio, Texas
Hours: 9 am–10 pm
+12102271373
Visit websiteEarly in the drive, short detour
San Antonio, Texas
Hours: 10 am–5 pm
+12102124453
Visit websiteEarly in the drive, short detour
San Antonio, Texas
Hours: 10 am–3:30 pm
+12103907236
Visit websiteAround the midpoint, right off the route
New Braunfels, Texas
Hours: 10 am–4 pm
+18306291572
Visit websiteEarly in the drive, short detour
San Antonio, Texas
Hours: 8 am–6 pm
+12105361400
Visit websiteEarly in the drive, short detour
San Antonio, Texas
Hours: 10:30 am–8 pm
+12102242288
Visit websiteEarly in the drive, short detour
San Antonio, Texas
Hours: 10 am–10 pm
+12102274746
Visit websitePlace data sourced from public business listings. Hours and availability may vary.
5 decision points cluster between mile 4.4 and 97.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Merge onto I 35 / Purple Heart Trail
Merge point - match speed before joining. Lane positioning matters here
Keep slight left at fork onto I 35 / South Pan Am Expressway
Highway fork - watch signs carefully. Lane positioning matters here
Keep slight right at fork onto I 35 / South Pan Am Expressway toward I 37, US 281: Upper Level, Corpus Christi, Johnson City
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight left at fork onto North Pan Am Expressway toward I 35: Austin
Highway fork - watch signs carefully. Lane positioning matters here
Take the exit toward 6th - 12th Streets
Exit ramp - move to the correct lane early. Lane positioning matters here
Regular Gas
$15.31 one way
$30.61 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.20 | $16.75 | $33.51 |
| premium | $4.54 | $18.09 | $36.17 |
| diesel | $5.61 | $22.37 | $44.73 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$15
Meals
$25–$50
Total
$40–$65
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 35.4 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $11 in charging · 0 stops · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 30.4 | 0 | $10.64 | $4.86 |
| Efficient EV | 25.3 | 0 | $8.86 | $4.05 |
| EV Truck/SUV | 40.5 | 0 | $14.18 | $6.48 |
Gas CO2
35 kg
EV CO2
12 kg (66% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Morning in Somerset on Tuesday
Local time
8:40 AM
CDT
Current temp
90°F
Unavailable
Destination
Morning in Montopolis on Tuesday
Local time
8:40 AM
CDT
Current temp
89°F
Unavailable
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Expect a local, turn-heavy driving experience for most of this 111.6-mile journey, as indicated by its 'Turn-heavy local drive' profile. There's no highway share to speak of, meaning you'll be on roads with lower speed limits and more frequent intersections. The drive progresses through a series of local roads including Somerset Road, TX 1604, and Anderson Loop. Without any significant highway stretches, the longest uninterrupted driving period will be relatively short, requiring your attention to navigation and local traffic patterns throughout the 1 hour and 45 minute duration.
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 4.4 miles in near I 35 / Purple Heart Trail.
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 101.3 miles you will encounter 11 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 4.4 miles (I 35 / Purple Heart Trail): Merge point - match speed before joining. Lane positioning matters here; at 17.7 miles (I 35 / South Pan Am Expressway): Highway fork - watch signs carefully. Lane positioning matters here; at 19.4 miles (I 35 / South Pan Am Expressway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Somerset, TX and Montopolis, TX, road signs point toward Corpus Christi and Johnson City.
Corpus Christi
Johnson City
Weekend Trip
Doable as a same-day drive at 1h 56m. Total distance: 101.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 56m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (31%). Some complex stretches to watch for.
Scenic Drive
Mixed highway & surface route profile.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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